pH probe cannot calibrate

[disaster999]

I wanted a pH monitor that isnt an Apex and can log long period of data and not just 5 days like some Chinese ones and came across Reef-Pi which I thought fits my bill. After several late nights debugging session with Gemini AI and hair pullings later I finally got the pH probe to work and start logging the pH of the cup of water the probe is sitting in now. But when I to calibrate my probe the button is there but I cannot click on it.

I notice there is 1 error detected and the error states

failed load raspberry pi driver. Error:can't build hal pin 26: strconv.Atoi: parsing "34+rpt": invalid syntax

After several back and forth with Google Gemini and following its recommendation, it concluded that it might be the raspberry OS is too "new" for reef-pi? the pin doesnt stay constant, and moved several times to pin 2 , then 12 and 26.

Any idea how to fix this so I could calibrate my probe?